Caffeine Tracker vs TKD360
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Caffeine Tracker
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Know when your caffeine wears off. SipLog tracks every coffee, tea and energy drink and estimates how much caffeine is still in your system right now. See the curve for your day, how far you are into your daily guide, and the time you'll be sleep-ready. LOG IN ONE TAP • Tap a drink to log it, or touch and hold to change the size or time • Undo straight away if you tap the wrong one • Search a library of coffees, teas, sodas and energy drinks, or enter any amount • Save your usual order with its exact caffeine KNOW WHEN YOU'LL SLEEP • A live estimate of caffeine in your system, based on its half-life • Your sleep-ready time, and how each drink would change it before you log it • A cut-off reminder before the last time a coffee will wear off by bedtime • Set your own daily guide, bedtime, half-life and sleep-ready level WIDGETS AND LIVE ACTIVITY • Home Screen and Lock Screen widgets showing caffeine now and when you'll be sleep-ready • Log your usual drinks straight from the widget • A Live Activity counts down to sleep-ready on your Lock Screen and in the Dynamic Island SEE YOUR PATTERNS • Daily, monthly and yearly trends against your guide • Caffeine still active at bedtime and when you usually have your last drink • See how caffeine affects your sleep, using sleep data from Apple Health • Export your history as CSV PRIVATE BY DESIGN • Drinks you log are saved to Apple Health if you choose, and sync with iCloud • Sleep data is read only when you turn on the sleep report, and never leaves your iPhone SIPLOG PRO Pro unlocks your sleep-ready time and what-if preview, the sleep report, the Live Activity, month and year trends, and saving your own drinks. Pro is available as a monthly or yearly subscription, with a free trial for new subscribers. Payment is charged to your Apple Account when you confirm the purchase, or at the end of the free trial. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. You can manage or cancel your subscription in your Apple Account settings. SipLog gives estimates for awareness. It isn't medical advice. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://siplog-website.vercel.app/posts/privacy/
TKD360
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TKD360 is your all-in-one sports performance companion. Track your stats, scout opponents, analyze match footage with AI, plan your nutrition, monitor your health, and map out your career milestones. Built for martial artists and combat sports athletes who want a data-driven edge, TKD360 turns raw performance data into actionable coaching insights so you can train smarter, compete sharper, and reach your full potential.
Screenshots
Verdict
The clearest difference is iOS requirement: TKD360 at 15.1 against Caffeine Tracker's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Caffeine Tracker sells 2 in-app purchases, starting at $2.99 per month and TKD360 sells 5 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Caffeine Tracker ships an update monthly, TKD360 every 3 weeks. The most recent releases landed on October 21, 2026 and October 14, 2026 respectively.
| Parameter | Caffeine Tracker | TKD360 |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Devices | iPhone | iPhone, iPod — better |
| Requires iOS | 26.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 15 MB | 58 MB |
| Age rating | 4+ | 17+ |
| Developer | Gruffydd Johnston | Cutting Edge For Digital Solutions |
In-app purchases
Caffeine Tracker
- Monthly7 Days trial$2.991 Month
- Annual7 Days trial$9.991 Year
TKD360
- Starter Pack$4.99
- Basic Pack$22.99
- Pro Pack$44.99
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- Elite Pack$89.99
- Ultimate Pack$229.99









